<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>Document</title>
  <link rel="stylesheet"href="bootstrap/css/bootstrap.min.css">
</head>
<style>
  .col-md-3{
   border: 1px solid red;
  }
</style>
<body>
  <div class="container">
  <div class="row">
    <div class="col-md-3 col-xs-6">姓名</div>
    <div class="col-md-3 col-xs-6">张三</div>
    <div class="col-md-3 col-xs-6">年龄</div>
    <div class="col-md-3 col-xs-6">29</div>
  </div>
  </div>
</body>
</html>